Identification of radio-frequency and microwave residual-loss mechanisms in YBa2Cu3O7- deltafilms in a magnetic field
| Autor: | O.I. Soldatenkov, M. M. Gaidukov, S F Karmanenko, V. L. Klimenko, A. B. Kozyrev |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Josephson effect
Materials science Condensed matter physics Metals and Alloys Condensed Matter Physics Magnetostatics Magnetic field Condensed Matter::Superconductivity Materials Chemistry Ceramics and Composites Grain boundary Radio frequency Electrical and Electronic Engineering Critical field Sheet resistance Microwave |
| Zdroj: | Superconductor Science and Technology. 7:721-726 |
| ISSN: | 1361-6668 0953-2048 |
| DOI: | 10.1088/0953-2048/7/10/005 |
| Popis: | The RF and microwave response of YBa2Cu3O7- delta films on BaxSr1-xTiO3/MgO substrates was investigated in an external static magnetic field. Films with a varying thickness, orientation and type of structure were studied in order to understand the mechanisms of RF and microwave residual losses. The measurements of surface resistance (R) as a function of the film thickness and static (H) and RF (Happroximately ) magnetic field are discussed. Analysis of theoretical and experimental R(H) dependences has shown that residual RF and microwave losses occur in a static magnetic field on Josephson junctions formed at grain boundaries and at microblock boundaries with trapped Abrikosov vortices and on Abrikosov vortices themselves, and are also caused by non-superconductive inclusions. |
| Databáze: | OpenAIRE |
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